var key_word="找书、作家、出版社？";
function searchBook(){
		var keyWord=document.getElementById("searchKeyWord").value;
		if(keyWord.length>0 && key_word!=keyWord){
			document.getElementById("searchFrom").submit();
		}else{
			document.getElementById("searchKeyWord").className="top_check_login";
		}
	}
	function keyonblur(keyWord){
		if(keyWord.value.length<1){
			keyWord.value=key_word;
			keyWord.style.color='#aaa';
		}
	}
	function keyonfocus(keyWord){
		if(keyWord.value==key_word){
			keyWord.value="";
		}
	}
	
	